Tips for Choosing a Laser Marking Machine

13 Jun,2025

How to choose a laser machine that suits your product? Selecting the right laser marking machine is the first step to achieving satisfactory marking. Before choosing a laser marking machine, having a basic understanding of the purchasing knowledge can be quite helpful.

First, understand the material of your product. The best laser marking machine is the one that suits your product. Therefore, it is essential to have a thorough understanding of the material of your product. Some materials do not absorb the energy of CO2 lasers, such as uncoated metal surfaces and PP. Different materials absorb laser energy to different degrees. For instance, PET absorbs laser energy much more easily than glass, meaning that PET is more suitable for laser marking than glass. Therefore, it is necessary to understand the material of your product, as some products may not be suitable for laser marking.

Second, when understanding laser marking machines, it is necessary to know whether the machine uses a metal-enclosed laser tube. Because currently, the metal-enclosed laser tube has the best sealing performance and will not leak gas. In contrast, ceramic tubes and glass tubes have relatively poor sealing performance and are prone to gas leakage. They are also more likely to break during transportation. Therefore, it is essential to understand this clearly when making a choice and select a laser marking machine with a metal tube.

Third, understand the stability of the laser marking machine. It is necessary to know the service life of the laser tube and understand the technology used by the manufacturer to control the opening and closing of the laser tube. Because a laser is like a large light bulb, and the laser is like the light of the bulb. The more times it is turned on and off, the more likely it is to burn out. Therefore, when choosing, it is best to select a laser marking machine with a laser tube that is turned on and off less frequently.

Fourth, a higher power does not necessarily mean a longer service life of the laser tube. The higher the power, the more heat the laser tube generates during operation. If this heat cannot be dissipated effectively and promptly, it will instead burn out the laser tube. Therefore, usually, devices with a power of over 50W require water cooling and have a large cooling system. Thus, a higher wattage does not guarantee a longer service life of the laser tube. On the contrary, a poor cooling system may easily burn out the laser and increase the cost of heat dissipation. The smaller the energy of the laser marking machine, the less heat it generates and the easier it is to dissipate. The stability of the equipment is also better. For example, 10W and 30W laser marking machines do not require an external gas source, and natural air cooling is sufficient.

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